Schaller Sure Claw

I used this in my partscaster as I had spared no expense and fitted a Vega Trem... so "don't sink the ship for half a pence of tar", as the saying goes. Amazing! Only thing to look out for is where the screws go when fitting, as you don't really want to be piercing your pickup cavity. The screws are quite long and I was warned on various forums that this could be an issue. So I took measurements to ensure this would not happen and had the pickguard off the guitar to check there was no intrusion. All good. If required you could easily shorten the screws by a few mm.
Adjustment of the string tension is super accurate and easy - a small hole drilled into the trem cover allows adjustment in-situ with the provided Allen Key. Achieving a floating trem could not be easier; the perfect partner for a Vega Trem. So, I have now ordered another for my other Strat. The improvement is massive. There may be some mojo thinking going on, but I'm sure it improves the sustainas well as making adjustment simple.

If you got tired with the "quarter turn left screw, quarter turn right screw" style of spring tension settings with that wobbly metal plate, this is the solution for you.
I hesitated a lot to buy it, as it is not cheap, but in the end, I'm very very pleased with it. I've installed into an Ibanez RG with 2 Goldo backboxes, all my issues with the tremolo has gone.
Quality is top-notch, a massive piece of metal, probably justifies the price.
A small issue is that the ground wire doesn't really have a place to connect, but I wrapped around one of the screws under its head before screwing it in, seems to do the job.

I've fitted 2 of these to my strats and i have to say they are very good quality, easy to fit and use.
The only problem is the mounting screws are long and can go through into the pick up cavity and if you're concerned about them sticking through too far they can be cut shorter or you can add a washer and nuts to each (as I did) to make them more secure.
When setting up the trem it's so easy to adjust in very small amounts to get the tremolo sitting just right, I also think it adds to the tone and sustain of the guitar.
Schaller produce excellent stuff for your guitar needs and this is another great item. Recommended !!

Genius! It takes floating tremolo guitars set up to a new level.

Since is so easy to adjust the tension now you can take your time and perfectly balance the tensions between the strings and the springs to perfection.

Very easy to install, just go with the screws alone, you don't need to drill at all.

This claw only accepts three springs so you better get high tension ones. (Göldo extra hard)

There is space between springs for a tremolo stabilizer (IE: Göldo backbox), just be sure the end of the backbox is not gonna collide with the claw "screws"